2025-10-20 18:45:26 (M5.0) Andreanof Islands, Aleutian Islands, Alaska 51.3 -177.0 (70fa9)

M5.0 Earthquake - Andreanof Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	5.0
Date-Time	Universal Time (UTC): 20 Oct 2025 18:45:26 Time near the Epicenter (1): 20 Oct 2025 08:45:26 Time in your area (1): 21 Oct 2025 00:15:26
Location	51.276N 176.996W
Depth	35 km
Distances	71.1 km (44.1 mi) SSW of Adak, Alaska 1532.3 km (950.0 mi) S of Anadyr, Russia 1555.8 km (964.6 mi) ESE of Klyuchi, Russia 1671.4 km (1036.2 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1687.1 km (1046.0 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 5.9 km; Vertical 1.9 km
Parameters	Nph = 59; Dmin = 65.2 km; Rmss = 1.11 seconds; Gp = 170° Version =
Event ID	us 6000ric9

(1) Nominal Standard Time; local and daylight savings time zone may differ.
For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
National Earthquake Information Center
U.S. Geological Survey


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